Rack



FIG. 1 is a perspective view of a rack showing my new design;

FIG. 2 is a right side elevational view thereof, the left sideelevational view being a mirror image;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

The broken lines shown in the drawing disclosure are for illustrativepurposes only and form no part of the claimed design.

The ornamental design for a rack, as shown and described.